B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused

B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/003—Sedimentation tanks provided with a plurality of compartments separated by a partition wall

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/02—Settling tanks with single outlets for the separated liquid

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/10—Settling tanks with multiple outlets for the separated liquids

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/24—Feed or discharge mechanisms for settling tanks

B01D21/2405—Feed mechanisms for settling tanks

B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/24—Feed or discharge mechanisms for settling tanks

B01D21/2444—Discharge mechanisms for the classified liquid

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/24—Feed or discharge mechanisms for settling tanks

B01D21/2494—Feed or discharge mechanisms for settling tanks provided with means for the removal of gas, e.g. noxious gas, air

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

B01D21/26—Separation of sediment aided by centrifugal force or centripetal force

B—PERFORMING OPERATIONS; TRANSPORTING

B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS

B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION

B03D1/00—Flotation

B03D1/14—Flotation machines

B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids

B—PERFORMING OPERATIONS; TRANSPORTING

B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS

B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION

B03D1/00—Flotation

B03D1/14—Flotation machines

B03D1/1418—Flotation machines using centrifugal forces

B—PERFORMING OPERATIONS; TRANSPORTING

B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS

B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION

B03D1/00—Flotation

B03D1/14—Flotation machines

B03D1/1493—Flotation machines with means for establishing a specified flow pattern

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion

B01D17/02—Separation of non-miscible liquids

B01D17/0208—Separation of non-miscible liquids by sedimentation

B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles

B—PERFORMING OPERATIONS; TRANSPORTING

B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

B01D—SEPARATION

B01D21/00—Separation of suspended solid particles from liquids by sedimentation

C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material

C—CHEMISTRY; METALLURGY

C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

C02F2201/00—Apparatus for treatment of water, waste water or sewage

C02F2201/002—Construction details of the apparatus

C02F2201/003—Coaxial constructions, e.g. a cartridge located coaxially within another

Abstract

The invention relates to a method of phase
separation of a mixture of at least two phases
comprising the steps of introducing the mixture to a
tank through an inlet and guiding the incoming
mixture into a substantially upwards spiraling
movement between the tank wall and an inner
concentric cylindrical wall and separating the phases
in a flotation and degassing zone wherein the tank is
operated at a low pressure and the phases are
selected from a group comprising: water, oil, gas and
solid materials, where at least one of the phases is
liquid under condition of operation.

EP200400781372000-11-212001-10-09A method of phase separation of a mixture of at least two phases
WithdrawnEP1504800A3
(en)